Hub for a reel



FIG. 1 is a front perspective view of a hub for a reel showing my new design;

FIG. 2 is a front elevation view thereof;

FIG. 3 is a side elevation view thereof;

FIG. 4 is a rear elevation view thereof; and,

FIG. 5 is a rear perspective view thereof. 

The ornamental design for a hub for a reel, as shown and described. 